{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4234",
    "entityType": "User",
    "nonce": "0xa652eb341c3487d7e59c8f9aac9ec92d6e7976b60719bd9d26d2b2f69dc1c6bd",
    "signature": "0xfb7206729e67af2997eb7c9808e45b40aec1f7c3c3ba122bc965c2ad3589d445359bb6611d12876eb946f77c2f4777ed3c8357b2926b27901b63af788fb6d1151b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}