{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa60f53735b3d36619a633065367ad31cc84bd586ea5e8ea8bb142ab2cf81c744",
    "signature": "0x40eb8da52e1a0e7d0910011e0477b03efae21fa6be266511d9e8a3d23a206e345c18a6a9652599b20579ad3554b6c5853daefb76b2c3a275a3fe978ccc07829b1b",
    "signer": "0xC7DC41BAb5b665A2c8A5F2b97Dc8c04792343A5C",
    "userId": "191336840"
  }
}