{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "110410",
    "entityType": "User",
    "nonce": "0x3cbf291abe9cc328a4db2d0d304dbd4bdf63d1129e001084ac1ebdadae2ed683",
    "signature": "0x10dca0491d85a17809952ea67b978d51f9317e96e6349c05800b5f5199c3f23a1c3315291fec19450fde270a04848c7916ba632f874d213bd3cf0975732e5b551b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}