{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "820486414",
    "entityType": "User",
    "nonce": "0xa28f5c0019a6a51440e5fb5efc7e687f2832b0288376904976e04bc9af12ce3d",
    "signature": "0x882907d2720d80f67f9b0cd4630867a28cac12e29f5c9267237c84d4281e16a869a407998e5a0d3faf429721040b9328ee7f213fff2637e4a832e690afbf39ec1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}