{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "371570",
    "entityType": "User",
    "nonce": "0x9dcf6133c77d4bf30ac5c58b48836a5b45d1b3e468965140b9fa1f746dd3245d",
    "signature": "0xc64da81d39e03be7f1666e9149611f279173aadd670696949f2c8cfc21181d9f25bd8b5f73a8647fe5b020873fbf603c2f18f1a8663f8f1da4bfabe0aab0f7ed1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}