{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "526",
    "entityType": "User",
    "nonce": "0x66702e8e09814e4d150836824cdf0c943f941d351992e8e51790eca2d4bfa5d8",
    "signature": "0x681fab287f26c89d3fccb61fc7b1064277362c1e200f02d96806cb2582b8f5755a67b1853cf74dd0a802415fd036196f8ee0b048761a7c564931b4a9b1000f001c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}