{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x068221a76a5024efd3136ec76c8eba56cbc5840687418d3d0c45e962cecc32ee",
    "signature": "0xa9b9d5215a09e128047fa7b9becc03dc742bd4e31bb3da2a610923cb5e8dce8202b507d189955f571d2308763f6bc06f5952cb24546cc0c421e6675561a8a1f41c",
    "signer": "0x0c519E7BE95279D3e397f2Ac6E0b30480D9B88C7",
    "userId": "765625105"
  }
}