{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "817564020",
    "entityType": "User",
    "nonce": "0x618d761cf659c9085a686534c8220337313d59d0fe371139da40d557223b7c44",
    "signature": "0x3d64cf3ea42db63dd534733aed6c69e89747221f4c675197a1a53ec0dd88da7a5a3b2a83a2628f8728862150cf62711f5ee7fa05fee116e49b05c01a75dfb7d11c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}