{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x56b15f0a11f627d66a1176fe4e2dabb466b80495ab8b28fb921cbac3d14072ec",
    "signature": "0xac8fb4210754cb3fd98cd3e5439ad72e6524a50f853445d01f1b91fadfeea97b11e749e9f14f3e4f2e422022ec3fc60840eedcbf66e722afee116c250ea624951c",
    "signer": "0x63AFDCBEEA6f03432FcfBBe9bb7DAE69903e1675",
    "userId": "585008312"
  }
}