{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105504",
    "entityType": "User",
    "nonce": "0x9aede8a3f5d930e36b1d293434ba93dd4c19034410dfd46ee6e0217cbbc8ea8f",
    "signature": "0x59f770bd36e745006f342a3af0361b8fbd34b50e239049eb8951fe48f437b61f0319fd96cee81de1abe28cb14423fedabdbdf201f4f0f34f1c89996d6bb3f0791b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}