{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1432425",
    "entityType": "User",
    "nonce": "0xa97dda21cdf4b69988a1b62fbd8064e39eed116456557dc898dffbe709bab9c9",
    "signature": "0xa98647ae279d181dee73e153d040c8dfa75838a70835daaf82932facbbcec1f71766649bd687a8ac1e0820e4a94837e7b84ca9d6e3886851361b3be0af16cb031b",
    "signer": "0x64FFe0281b039044f7d34f49E097375a625c6850",
    "userId": "367335314"
  }
}