{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670307808",
    "entityType": "User",
    "nonce": "0x0527e4aca2bd1096ad14287417c2028fd40a3dffac2b81babf1efeb309a63795",
    "signature": "0x8e8e2ccc253dedba181e09c0e200652d28268314b4dfe86ddc1e7c3bfca648db49757eb29dd4a41a1fa8ed0ad028b8ac4e40030372124139b07418a48a1d888a1b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}