{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "243057014",
    "entityType": "User",
    "nonce": "0x84cd6a5622b838a06f455810a85e60b4532c4ad632df0a7fa3193d178c9dc740",
    "signature": "0xf8319319d466bfa200e1b5a0c68c517537a262d1dc901f995d09a1d90ea9c5b368beaf7eaf40371608fa91c988814249b50ecf1462b8625872dafc614c94b2fb1c",
    "signer": "0xaa9597d3d2D028AC73c689f02E12E7e28A407E7B",
    "userId": "761103314"
  }
}