{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x371936f2c585fb8a0ffadd54bcc747ee4154300eb4ac1387a7ad3b85503b596b",
    "signature": "0x5418d7c170645ec5dfd3f34fc19de5c6551e6bff54d78fc56ef575bb0335dc8571e353e2262797b63a7310ab9dde51919c27a7848acc13e158b2a66a938d5e5c1b",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}