{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "766793155",
    "entityType": "User",
    "nonce": "0x01bdb213a60217f5139944734be210945430da19d7e5db40cc6dd3b2183c3c97",
    "signature": "0x8b453487b4975c99edecb9fa3234d424628e59272a0c2e2341c0775de87ab8ed0f797d505d422db909c98521eb4bcae27d04531c8163d399db188e8e4e8c3a081c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}