{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215320",
    "entityType": "User",
    "nonce": "0x7167c34c45ba311ec5b2baf9a6d26cb6ebf5cb343f5959a9656cd6dc0a805657",
    "signature": "0x94986d5b5a975158b1cd5fc5d5a1e8229e43078935d65727264527222bbc762a7573736a9620d4be70b55c9c31604c4ae5ad1271314e12da111fe6ccacd04ea71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}