{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0xcd90c12f00eb8d8172b57c2ce34f58c5d3764045236a09b9bb7a77e55bc35064",
    "signature": "0x3ef485af3206beb926908dd49b5ce824cf750c820607b85db230eb07dc905daa2f8499499b95e232aa14e58f83009c647feb0b55f9cb4bfeb3a2c14b0e18468a1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}