{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "650682653",
    "entityType": "User",
    "nonce": "0xd0122443e46e3b1a357fecf4bc91ddd273f828cdbef48f033450dd4610292b64",
    "signature": "0x875d65b48396922a619b151691776d3adc60b126a325e4171a0a26e4b92671793534b7f211868085f39d3b254e4823f3659ab3af2a31995ad8b635aee0da8fe51c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}