{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "873624",
    "entityType": "User",
    "nonce": "0x6939862e962d795c255c0062d07e0a39d501d49bb3b185d8cec782ec1a6c86cf",
    "signature": "0x5e705e2522a371fe259d4bf2d88154e0fbce80c7c560e484d0ee886033c232a12dab28a9164ec01ebc7d3f4db5d74648c2a44c524ecc78ac672d44e2f0afa4001b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}