{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315031",
    "entityType": "User",
    "nonce": "0x0726776e9b1abcba80522aaa4c436814a02304923d87be8c3ef77e66ebd549a1",
    "signature": "0x6eda5bbf2a5ece4a2565d372b921f7de4eeeb906e4675bf47fa93e56903ebb1668b5c38a940ec35e17e2f2608886b79d3ef43c4acd0273a1ee6b12a86ea395f11b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}