{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1966617",
    "entityType": "User",
    "nonce": "0x90e246efe833fec4f0a529bad90b54119e84f719470842d409330a6eb0f4b1f6",
    "signature": "0xb55af25203ac30ee1e104c12fe0a1efee217a857df8ec49d9f233c914cc9afb933fb368d76897fa5ae45fff914336fc234207467f45dc609cb8ee2999054e9eb1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}