{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d3c72b54b184918928e6ff7fab4f6ad286421bad16f750b24aa27ee637efb02",
    "signature": "0x858ba89e0cf84aebd76d27782c0bffee5dfa499819ad1c4966436edf7e97df7422eebcf4a168796fb887f83d8ad7365b2860d97d2a866fd31cf21026c4e0b8931b",
    "signer": "0xA74c682929F4dC653C987FFc656cf8CB9004689E",
    "userId": "162068161"
  }
}