{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1212434",
    "entityType": "User",
    "nonce": "0x2f52f28ba622e729a60163cb90284571aba12fc78ff045a8d39a9a83255edda1",
    "signature": "0xb848182b3b1b43aefdaf640544ecffec5470beb0807c3b562885ca44cc217c194928b2f91657d1cc79017d06e9aabc8709fb44deedb8acd2dd3ae0f23af8c50b1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}