{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142071420",
    "entityType": "User",
    "nonce": "0xad7ef506cb0ecb0cbbf4658a32286a38d5839808d520ff7a61cb43bcc4cc3798",
    "signature": "0xa0d746e80467258d877c177ef0e0677edc1c324632473522e571503a01723d61490a7756c1766848d46d413051ccd7af50012c2b0c340e6c5519039ec045c29b1b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}