{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387417",
    "entityType": "User",
    "nonce": "0x1cd198b12c9f7f22766a4d56489c3f9d1ccec429fa306a0418e389c0183f82d3",
    "signature": "0x5686bc53f91da24e4b3da14a01b2f82a5aa4304eac29c3a3fa0e566e982518fc22444b7647bbdb9c640e0712a70efda899c7e9ddc6cdb94c234ebc0181e7507d1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}