{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222",
    "entityType": "User",
    "nonce": "0x6b591bca8d2bae3c4d61aa32ff4147f13be618f5c8c6a5c99a07bccc4239c3ca",
    "signature": "0x2da42aaf7c75d540e5b93bbb3b11fb0289a3a4a9cf774facc53fe0e122f0a7773ac8dfc6b8d7035b8228b2d962f57359e63df40afdc46b8c3264b6e20e50a5271c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}