{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "156881",
    "entityType": "User",
    "nonce": "0x759cf20c13ef6503a7edc07f6accc3519a85715611bb612e9627f65fdecb4fad",
    "signature": "0xbab296f0e200e145f27c0d86b57f744be5471446968a756e6693decf694114f334bf515fe4c1118485a2d3243fa3dbf9d1f59a2fc637e6da9989dc9a45088e331b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}