{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0x8dd3fe74ef062ced2500421c217b9cd861a67cba4f244e5273482bd68339d445",
    "signature": "0xee4592af6300083f5d0a3467f9b81d7efde5819a37cb67f9a28d7b10c1a85884672f81e92886ac39cfe462a62a37a41c0f769034fab1496b366b93ea1c101a4b1c",
    "signer": "0x3ce98eEb540e9f90ae2BB6588CEc86ABa4099408",
    "userId": "8601343"
  }
}