{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146979",
    "entityType": "User",
    "nonce": "0x9b9ad66f347616c07cdf8ee16ab6332c2b1c4fe964fafae459345491057aa3a8",
    "signature": "0x8392a905403441476b4444b782b2548250d1a3e79532cf7e365393b9c9a3f6d106730d9f0a48c3ccd3e9c25bf64c881149a00b8b3302ea3add6e24b1d655b9271b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}