{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735271",
    "entityType": "User",
    "nonce": "0xdc1a1e32c7991e1fb993807b4017c3fdaa442f00b4d03e02b2b103cacb4340f3",
    "signature": "0x5145fb7a80ac9e160e303badf6cd6eeeeb2c709e66748f494326f86c1ed5616b42ef00ea083cdc052764a94bd6254fc357f19051e07c21ce897cd812648a0ca51c",
    "signer": "0x7F99661e224A13aCbcCb93b3552a051808E66e64",
    "userId": "196251786"
  }
}