{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x56277ae8ead1deb62e56918bd86323f80f81705dadf25fd03208a0ccf0895b4e",
    "signature": "0xed6a841c03dc19594cab4968e22877d16a864db8009252c46b3009b1c15094cf2723a3d06668fa2b9f928e070c0f9477c3002bfe2bdbc58e1f09c4163a4107d11c",
    "signer": "0x96bb8982D4B1BDe23e6873C4Bf9615645da9dd20",
    "userId": "999425902"
  }
}