{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100910",
    "entityType": "User",
    "nonce": "0x931dbb1b39c865e75d8c6ba29f84c450aabef0c738604fc453ea18a1130d7d2a",
    "signature": "0x18f8ea262ddcf8fa56d4c298c2a72c5309f90b6866d004f5c596e77f5ef894c97b7e03e440e60fb34a70f7e1c47a302d44f066fa93a9a0f2b126f101d689ee031b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}