{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1881050",
    "entityType": "User",
    "nonce": "0x62c0502ff7bd81a51e7f6e851fc8a8725411f46514f8d03ebd033359e2e1ea10",
    "signature": "0x4a27d14d310f471820228fa3b95f15fb456e2ab5ec9577cf8b7714124aaafc87622d5b99637998453f2ee42094837570dcee40c4abc49462240a2e0f19590faa1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}