{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xdfe0e718fcbd2ab5fc2c12ab8c0b5d2f4b3dc947da969977e02c8a4b86e2945e",
    "signature": "0x051e9960c169b6f00418ee10c0eef0b71bb7791c709a0359e95f184c24f0c10e3d34a433f929cb325326ab5576931cfb5908cbf6af5d3d501163fcf3009a2c701c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}