{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "287992531",
    "entityType": "User",
    "nonce": "0xad50ac0cdcfe2f400f4562bf56e47643d312249f8c121382b384405f74008220",
    "signature": "0x314415aca195cb6567286fe3c6f495017eae1a6339ef157f34940c6b75401970264c2875a8315a1d5ce767d4a59d8a0b4a540baf7562eea09451847573af691d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}