{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "462352719",
    "entityType": "User",
    "nonce": "0xf44100ee564580caea2be554b65886c6556f5ba852240706fdcab5a83cf89498",
    "signature": "0x5dfda0790f98ff4354446bc6915b1d791bd51479b8258e404738205982f65ce06af3534bed38bcc9eaf63999132470a2e70b1ca2bf4d1a912e973ddeee1fdf9f1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}