{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeaf04524ff2957a8f6cae8d14266b1de2dbefa2569087b2f9d29213c861797ff",
    "signature": "0x098226a0b19bbda32a32550125a20bac9a5653a5e748aae88bf8a7c66b10c6ed71e7741103a31bbbba9605ace0e99bc7645b5decdbf40510e8edc73972d1b0371b",
    "signer": "0x017154044C3B69e2acD09EB052Fab247Ae5BEA16",
    "userId": "525733781"
  }
}