{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "905219052",
    "entityType": "User",
    "nonce": "0xd28f44fa8abf05b6e6e01ecc891f1456c293baaa30aa7aeb21500b21546bb846",
    "signature": "0x1c0b26f584288a41928283f68643ce9fc73ef92a664ea50bab7826b95ac110626939c054eca5e48916c30164531b0c5076d47cf0f0650db4f4a3382d4f2cd2271b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}