{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "903",
    "entityType": "User",
    "nonce": "0x4f717ad97700383723765e34ff193cfb16ae8072bc6ba3f203e9aefa32ab326c",
    "signature": "0x71bc766f7787bc6c000f7488d3db56082c3fc1a926708e363ae5de7976069724697c89eba99caf9103afd6317e434b630547569ac78acc699fbc12ec02c7396d1b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}