{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755516",
    "entityType": "User",
    "nonce": "0xd12578cc9d8aee9ca686506646affdcae024e55947e2c0460bfe0bc078ada050",
    "signature": "0x651f14e92a00ed97a0206fb1b84a7677f1b8deb2614fb9bb803865dfd547c44361b9618155b13d1e0b7423139cfbbfc2c68251285e92278236cda1447db16d321b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}