{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "277314120",
    "entityType": "User",
    "nonce": "0xf09013ab065e995ab897e638b6fe38a6782c1922ca4d34cc355d1c2f4edefe89",
    "signature": "0x8fb8bc588be8ae893fa0cb461731d3ff9260043fb1e80a1cc2495644f5708a4423fbb080925e405f77d3f3c353984a6de06f890964ab88352a3fa52cdf67ebf91c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}