{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "922",
    "entityType": "User",
    "nonce": "0x281e4a00be30360ef24b1178afcea32e2fe92c8e1a31acf7bbf63ac5e45a9b41",
    "signature": "0x1cf1dc1c628a35294d612eb4919529f62140a942444559ca0fec12f4ae9903bc5f0624ea937a4ec360c066849a890972c2742ca6ec6138261e06d46c8ec7d1321c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}