{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951116729",
    "entityType": "User",
    "nonce": "0xf6a030f1167c3bd8ee5e20c77e8c5b34b6fd945b350e90f11127361ee6ee4ade",
    "signature": "0xf40590215836b8c06efa91aeecab4dfdf89d480ec457627dcc4fb10a4f1ca97364f10a1c1858e55ceed21c27492e11c10bdfba46b0f189582353af766eb8bcc51b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}