{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa2bfb375312645cbc05bb092ccc2634fc25260f2553d8ba2dd939beb22932b15",
    "signature": "0xa09fe9e4a566ccd514d1fc781affb9fcfc0dff41aaf4f505ef659abb936b77603f59d95c92ab2f6843469dd90bd37d5bdaea1d75a7e2c07351ce009b4abf38311b",
    "signer": "0x99349974a285BA4Da3FB67Dbec77e3f462a5E306",
    "userId": "214996084"
  }
}