{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa2941d44ccbd4f15a5d9a44926b0b9ca3f837a4ccc8ee69d344d01b852ca6e94",
    "signature": "0xec3feffec05fe2633e0b683a2afedffbe9152885f983a1c8ddf1bba3e4d8f252203fb8f38775e82d7ff4691e5254feb5ba88cca27b7104b821d2fefee5a92d981b",
    "signer": "0x6eb2947A963DE258f13496aF2d17640dACe6F1C5",
    "userId": "182646433"
  }
}