{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54038",
    "entityType": "User",
    "nonce": "0x72b5ca71ae0a45a49621142fff49704f0e8003c61117efd3918086c79392a6ee",
    "signature": "0x2da6d13f940f153d71e0b3782d74b8772e9c94076b7200c77be86e22a98b0f1e17ced07477428f87577582c2e0cb731aacde04aefd44b080aabc18cccdce99ff1b",
    "signer": "0xc5c542a604880bF9049870Ee92c9CA4594Ed3129",
    "userId": "277347377"
  }
}