{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x184b1ec5fbb5e18999226969276b6f8260b5ce7398ede67a113845390afff3ad",
    "signature": "0x6c6efeb18e4278e10ab60fce0ffcd56ff3bab4cbfad5d1630b832af12bd504c91bb64522594dc19f361f7e51dc81716c8dd89fa49be11499d13ed481a48be15a1c",
    "signer": "0xc2009c7F2795E038182C90651E17DC5Bfa03D005",
    "userId": "621598376"
  }
}