{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283342965",
    "entityType": "User",
    "nonce": "0xeeb4bdf5df812e02c61b4d82303ba67cc95279679a3163309b14c691d6ee9973",
    "signature": "0xc41bed586ad881f438c972c8d3e9986474b871bf5c4c3f6db92374ff296bcd1e4ad6c941b938b20760141348c50e16d33d8d806f1af8317dc103f70c5de6aedc1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}