{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151536213",
    "entityType": "User",
    "nonce": "0xa5d466b64085abbd2249d7ac6ace80fd6432005096bfc952c5da0c98e89b6002",
    "signature": "0x3bcee51c38c84ba11000f919b7e9d0344a59c61ac97f9c40a7b7e463ce4f31b00aaa551f0c1f8dbafcb89e49463b1fed1fe6ca74c14656d3d6aed546faed7cb21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}