{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe9200d64317704227c661e64a85823bae349289ca010e9b677e8ee4123488487",
    "signature": "0x17a8138ca6658a0bab0882358e7c639d7e1d202ec8ea0fc956e2b0338e7d862d48bd877c367e9d4a93ab866905da36b7a2ec8816e28caafefa3890a1b68674001b",
    "signer": "0x52C54744FeC93B156A460Db7FccF10e22b6FEdf0",
    "userId": "194963084"
  }
}