{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73735",
    "entityType": "User",
    "nonce": "0xe2af07d4971b2b009b1aa5837ead46e3016b7e3f01f1c2c022c3dc02c1294e4f",
    "signature": "0xb25ec2963ce396262b23d8ff221bd053eef6128b9c70d4acdf4b78793b5664b969105b5873c708d6bfec6f86f2db0ccd1e7b340ecd711aa8c0a36f2fed7f4e591c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}