{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7a51c2f157ac24577417efe9b2d38b00d315a2474de5b1f899075eb1a4d7f9c1",
    "signature": "0xbd90af57857e987755c617abdaa0da543e4affc773ab4575b593fa2777360a7c0ae3c369236aaba0e22f755465ec55189ff364a479c7c9b4c3bf791603c661431c",
    "signer": "0xb0feA4543fef5C1F3F492c9D638f3A94fee1e65e",
    "userId": "710516026"
  }
}