{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203774",
    "entityType": "User",
    "nonce": "0x2c97dae3e9e5693512001f672f6f596a57121e0b0aebc1ad93c59e8d1014ad10",
    "signature": "0x7088adf32849de680f1cc3d3561cb51b1ef512473f1fa00d49ad995b2be2d3db668c1b014b3556e9cd949abb1cc513db0e157f7014cdd68bdaa8a5ca0262c2801c",
    "signer": "0x00C2A14a2dc35492B2768b362eBc676E4B6E4979",
    "userId": "657228643"
  }
}