{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142486",
    "entityType": "User",
    "nonce": "0x2ea7e1887230675a1387bd85b897803d40b0138ab8cbf785c6eb0679a79ebc04",
    "signature": "0x9c2b2401f9b969b253146c31660cac5f97ca6c219c91762a78c0cf1e5d3a613111964f9072bdb4c3cba21fc9c2153db6d2d817f9135594354470d2c608d1a9941c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}