{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313757",
    "entityType": "User",
    "nonce": "0xcfbb3042fbbe34bd0ea7498beb47db814717649e11458ffeea522f84b8dc22e2",
    "signature": "0xa98c30c3272e2d4a2308041a3e09ed06d2cbe21d9f18fccfe6be28f58567eefd0ccc4d27b6c6a88cec5bb20cbfb00da0f7ac8995f8bbb156a77649c9ec8320c71b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}