{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7d73dbdd47f582d9cf18cdf165c0ceb86132792f7292a85faba6a12a8fb6a70b",
    "signature": "0x6494920350bda8cdd788aa9f8eefa634393ee1f6da0defb6652b2735d1851c1528b8312e5fd208b3fdea4ec59352c35c4a15b77766ec02224d9b7427cfb3536d1b",
    "signer": "0x1ecAca6FDca211a15ed51A648dF98347ba816969",
    "userId": "227922055"
  }
}