{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139515",
    "entityType": "User",
    "nonce": "0x472772a6141fcc85f806bd2a9297b54c002e15b094f84e8abf9aca3b838ff893",
    "signature": "0x488be93056d2134c5c00ad214543a0972024d694c2f98065be61a441981eea9249c5cd4c9941084b9e131d6f41c740c3a558d8c6bf70975532c82c660194d6a21b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}