{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x21acf5715ed27f520ecc0db3bfd4a0d2dd0a969ac2accc10c7c8dcbdb878df80",
    "signature": "0xb4b5d654630ccb025a40d1443952c7099e66da6c0c749f17463164795c92e200736108b1d0b47d8e20b05a15a79c1016047a68d8596b485a51fff93ac0dd78351b",
    "signer": "0x07B2c029e5E8D2242Cd4B484125f6977573f3bC5",
    "userId": "662063117"
  }
}