{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0x19f11edd6b739d2550ecc698824cbe1d3d6e46072f8547e78c2253d1fbe0a0b5",
    "signature": "0xb1e21cb45d27661c3ff1e0355a7b122fff178edf3f385f761ec8ea9e4970fc5242bef67b9f61ec3d985dd3e40c7d63f38fa9acefdb367664564ba05b67cdea961b",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}