{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x071692a09d4da4dffbb8ac30b12c8cfc2905816703791b7645240b4810332455",
    "signature": "0x197c4bf182450c3c4138990a983378eebbf75bc94fe6a734ad7e33c7cbfd1d027f0fa33b57a38cc967eac04c658cc6686612475c1e7983c3757b5c12f6d0c9fb1c",
    "signer": "0x323Ee5F53D4082579bFd2C1b0534A15D2B21A50d",
    "userId": "982556274"
  }
}