{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "626857797",
    "entityType": "User",
    "nonce": "0x9303df6946e5f17a87cb686daeb073d61ba7840deed1f7ac5aa7969f13375892",
    "signature": "0x2a2aa3a7637017cf7ed3ea3bbb0a5e0a958e75b17e19b6baf4c3b220b33061433a5331c46c86ee6a5005def5409d9ceb102ab153d63e25d9ff069e11830713ef1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}