{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0x0b23e0ede611e4632e84a7a34217d006c3120e11836707edfda66d3052a9aff9",
    "signature": "0x000804616b13f3d8f2b2ffe5b1d600b4e0a9aadf66eabd45ed67301751e3aec1230584d969d0cc5c960fa3ded750e6e7b3010e7246ed97d5f75e2bd5bb41adc01b",
    "signer": "0x1e9F846fdf1a89ba11e2D67fb4831B7E14ae8940",
    "userId": "617992566"
  }
}