{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2ad69116f3442cf154ef19eb41a9058c6d34737aeaa690fbd5cc0b3fe9a05997",
    "signature": "0x184cd32e7914cc1f81643333a5701fb8193d11c7a392f5718f121c03d82e204d2d62b30a4197629e08aa0793b176464a715af84003d76aa41c800079a7b01d581c",
    "signer": "0x5a9D64BEEE5B98f5c5439899A246E6df6234757f",
    "userId": "9099769"
  }
}