{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18985",
    "entityType": "User",
    "nonce": "0xc748b851a11f39414a403965bf407e72f4a2067f09de0bae463264053fcdeff0",
    "signature": "0x480775913d2f74dbd4e72043265855fdcdf131dfd201ab8bc29dee4a0efe9a0d3c3aff0c1c5d92f20088bc6d42c5dc1209a7c6af30da10b9937e14132781b1c71c",
    "signer": "0xe1EBB2b0eed447a94b95294C357cc71235152A13",
    "userId": "888593291"
  }
}