{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59507",
    "entityType": "User",
    "nonce": "0xb1e60c939775d90ad074831a1ecfad9d211c705f8d9228f6930aef48cfda927e",
    "signature": "0x04759148cb8ec47c0808b5e6b1be4a29556787c4f844b86551d0987fb500dcad7fd76631236a04245e3e0e943ca5b91a5728e5da0c706288569ca34f88ee65ed1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}