{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271990",
    "entityType": "User",
    "nonce": "0xd589647db5c6e79d76089d633799576e216701051ee28c86f72a5e3b7a56fcfc",
    "signature": "0x1d4178abc76bf55fc4d1068987aa3d290f640edc353bab395b0c678eb83c604c6b0bd792fde83f562335059a1959244e6e6ae95ba8a85d665243fbd4791549e61b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}