{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51192",
    "entityType": "User",
    "nonce": "0x9d41a533cb757a2b3eed82497f1ced0003502019d2d7f0a1b2e84649abd1786c",
    "signature": "0x691de1a8c7422074beabb1ed15a49a1cabe682d652b80863aff217a86616c87254b65e2c55dadf7d95b45bf73c485fbe9f4bb06912aa19cedc7314d389f1f4941b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}