{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906222947",
    "entityType": "User",
    "nonce": "0xf6e0b26083948a5e4e38ea60bee25a15926b48a422b0b941653483a5ea1f7e63",
    "signature": "0xe5012dece06aecf8adfbdef0b2d1c4566577baa8f4f6988f35f005ecc6a6071276c7dd554046805f949525e0331a29fa446751549bbd56dd0f2c5afe1e841ff51c",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}