{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28e1d81bd2fdfaf8ce6d14d3123918e53626321ba1efee1920a504ae8ff47b72",
    "signature": "0x57680bf2bd24ae05860717c0e6da058549056e4698cf26c31e3b551ffad11c6a165daf80e571ced21ecacd569a8ef8348131a449cc7392ed8770649500aaab4d1c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}