{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51879",
    "entityType": "User",
    "nonce": "0xa118e08dd973e194f87d5cca97e8553acf77fc641fbe03e20dbfb5b2aa01597b",
    "signature": "0xbdaa88543181f454c3a8567080f9d28bf5112070dbc20bb66608750c92b795161dc1bb014d4ebb89a517942c74d349fcd19ca4c3d82b3846ac997b1f21fbbd411b",
    "signer": "0xc28F39d473d5C4cacc612630A8798a119D1Bb506",
    "userId": "901788935"
  }
}