{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "788734",
    "entityType": "User",
    "nonce": "0x94d4064f76ee8421cad38bc1a80da0d548abc454487081729fa4d80c88c04800",
    "signature": "0x37527f9bfc6e687bc9b826683a668792d9f4c54daa2891064b24351cc127920617b70315e66256147765e609f6f61015d7e7b775f41b36b47a372cc2c0a4efac1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}