{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "955997519",
    "entityType": "User",
    "nonce": "0x65ff8c6d3b215993466fff47a7d52498a865e1704d161ff382388cdee69369f4",
    "signature": "0x8c878ce92d57f8f80902cad561e6424ee1bbb092fcdff6b7a62a07caa790b6f32a8a38aa631bce8336152217f74009ba6a8780345aeaf6c3898963d244380bf21c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}