{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37091",
    "entityType": "User",
    "nonce": "0xfec8f7518353a4ac5fa54a7709475168f0c175f00f72000ea5fa3885b1553752",
    "signature": "0x5b1ab56ba49d9d31d0d9a663f9f27753d0f0ba4c8c82447d5632056d87e0b3c50e27e5aa9c7707579ec411c8d029928c152260beeb1d4754c8b9eba4117ee70c1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}