{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xf75033472cae1c5c76e8baa8172b3ca7b56700debb9827f1c8a747308711c1f0",
    "signature": "0x47d9a900e92f28c65a3c391ec6bc6bd5fbc9f2b31a5f686040713285e2f228d077d08ced9fd64dfd5d47109af1159f33117372e6e7b9679d7ee8daaf0b97c0721c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}