{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "756963",
    "entityType": "User",
    "nonce": "0xe4e3ea7b2593022098b39a0c85feeb3f2ea40c2557e3d373f06a1fdb642672d7",
    "signature": "0x42b742aa1b4caa97f8f1b8803fa4038508baaddd6b810a7d956611678bb615313e4a448ee603a32287ef9f99a2f2af04bfa474ad2b0bcf48c50c10a435e3d32c1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}