{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216497",
    "entityType": "User",
    "nonce": "0x9d1233bd3f81894ec204c144dcc7eb64ea89d9562886782e7d37313d9e150ff9",
    "signature": "0x88313afcae475227f76b7c550e8b578f3516aa90b45f13012fbca860c0dd71a06c6de48dc652e1a185311c6591f37a086903baae8c9ae71dd5d6ceb9ef4966431c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}