{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954117045",
    "entityType": "User",
    "nonce": "0x920d016cfec6a1836434add5dc739e31d6330233e58fbdd9161c34302bda8b8e",
    "signature": "0x5531422dfe2d3cf17153f1f919c8456112a5d0dd9bbd358be98ea62e02aa37db01ffeb471f5753c2cc4dc5ab8539325db1f21aa33890279fa0f5cb93000aec191b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}