{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74652",
    "entityType": "User",
    "nonce": "0xb30d97f3a1490a8b14583d915d39d9eb8c1b58e2f30587ace90110aa2854b515",
    "signature": "0x49dfbb6caf7df78b1685c3c9356b613233577cf4e38b8d321465fcf61b38c6dd1def3a24d78f20c1e61d940c6c082e7cf2971b8b3bd77791e24adc779d16a0801c",
    "signer": "0xbF40719E4fA156039728D974AB2070915e7Ac676",
    "userId": "144203"
  }
}