{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2005440",
    "entityType": "User",
    "nonce": "0x9938bea77696952b9a5b3d5daa4a6b7715af098b82e60ecd778a320b75b72a39",
    "signature": "0x7bf4894a89f526b0d000989c4ddf5b61f1672f0aef99a8e62e583bb15813be2e0755e59c316da4774d67508cf45208fdf53e5ff22e7d62069a0b6a68ae49354c1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}