{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117828",
    "entityType": "User",
    "nonce": "0xd77b865cdad530cce249be56ad473c31b5abde3fa9b521b24ab6c65647e629a1",
    "signature": "0x04dc5cc683eafd5f7488c5d643dff5a35f476da097a2cd09aeb7a7ddde3903a37412b9e9461eb9d334c6e1fcb910f5394fdb49110c7e1b1c9d9d0d337980a9ee1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}