{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "84505",
    "entityType": "User",
    "nonce": "0x9dbc45eb604de52c4597e2bb3f48d10ecbe919d6bb36fdde48950ac5c485670b",
    "signature": "0xbf8c6b5f0de6277a65f9c4acadd99da6d7e516ccbf5606e4c82d85a276b2055f23edced0ef3e3223ab8726297d5e3bbdaa5c98d5a1a72713e826089c39b211d81c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}