{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314470109",
    "entityType": "User",
    "nonce": "0x1aa29612aa1e020caad86274e01395298a3fec204e21ba22968ecc4ee62aefc0",
    "signature": "0xc507d203ccb43a61b86de1fe1da98a326101854e26ebdec6a6916545a6b75519046d6d0e49580d7f33a2bce49be9023dee13036d9d4c9157304961eb826eade91b",
    "signer": "0xE3CdfAFd2999c1C06c139E932b0515a9F0B07382",
    "userId": "29797210"
  }
}