{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x60bc4a13b17e1774a7f44c18011477623d823100859a5b04e8eb5b57f39fe3ba",
    "signature": "0x907cb23ca81721d72f3a1112581fcf1c59b867fe69fff318389eb79ce13f88727c7aed82c0836f9d3d8d246829938230b026f952e165ea2ede28dcbd2df492d91c",
    "signer": "0x5e4Fc9D12718F924F2A6498FDcB379AA8e295797",
    "userId": "672795663"
  }
}