{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297878",
    "entityType": "User",
    "nonce": "0x74d01bf7349aefad5d5e95331b53ad89db934c7697f106fbdfbd36e3a46d82d2",
    "signature": "0x6ec2159ca9fda2c81d583efefad1d86a0bcd3020b654d121eef8474dcecdfc63107e9b5377bd54f183b143a2765c618b109394bfc2c1d6e3d4d715b68a894e221c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}