{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135831",
    "entityType": "User",
    "nonce": "0x89728a6404f57835e9c8629a7e5d08d10a877d2066770789a2d132b8b3bc5d62",
    "signature": "0xfa56f1e29488faf354df9fa92ba941cad7caa1058085ce5795b4da0dcb3abb6f71136f1d6f85c17d6b577783d9739ac406ead9342b3a645a1041fbed758247f21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}