{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5c7a4a0be07ee71feb1afe51f583d94f3d3f9471e3198e7141781601b1bc8097",
    "signature": "0x6896d2e38eecfa07c47990307bef73d2408f0bed23aeef9e0abbf85573f5e6a44d16dd7965da46112a6e26bf04a0b1279fe2f4b9dcc6650efa3218b58641bf931b",
    "signer": "0x99a97FA4986B28AD4429D0Eb4320ABE30C1873db",
    "userId": "606384248"
  }
}