{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "236646",
    "entityType": "User",
    "nonce": "0xf5dd5e3c03e01995396623380ac9bd99ff3fe13ce68b9b53ab50d8d72e790677",
    "signature": "0x1b05356850ecdf902f78056cb8d3bd4d4b2ffaa8edeb4b5385355077d4824a2772c3460cf67014770450b3ea822f11e077691196cedb17cb4dc084e9839376ee1c",
    "signer": "0x37d5bFdb1c5031d4086D3D13687e3092523fAA1c",
    "userId": "623605162"
  }
}