{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x1e63308eedadd9eede6ead5179d8c3fa0239da4456b63ce99a7421281a07f0b8",
    "signature": "0x3ee2ebcb6e0b79055423cadf00b202c56d13480bdc138ec35f381600af5176d85b4f0f3be9ed0167e0a121b84eb196f3701af7357f982028c94f0c1e7e3cf5051c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}