{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "659957221",
    "entityType": "User",
    "nonce": "0xd0e29b1674d628226fc3ef0ab736567a2091dc85239173f2e5b775cdeccca5df",
    "signature": "0xae7933796098d4ff1ab20c3b7f2f9dadf66537a6beb9cbffc980b38bfe6b39dc3b13cc4a355fe9fc9d2aa9cd09dd0c7d0bd2cd2ceba79e4c0ffb7d7b11b66c6f1b",
    "signer": "0x128AA118736C236c97A4c65DA81B891f37ced40d",
    "userId": "255857637"
  }
}